Solid Shampoo Bar with Sulfate and Sulfonate Surfactants
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Solution Overview
Problem
Conventional hair washing products, particularly shampoos, face issues such as difficulty in measurement due to liquid texture, wastage, leakage, and inadequate rinsing characteristics, especially in water-scarce conditions, while solid formulations like granules or powders suffer from volatility, disaggregation, and poor foam initiation.
Innovation Solution
A solid composition combining anionic surfactants of sulfate and sulfonate types, cationic polymers, and (poly)glycerol esters, which forms a compact, easy-to-handle bar that rapidly solubilizes in water to produce a rich, creamy foam with improved rinsing properties and cosmetic benefits like manageability and softness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If liquid shampoo is used, then good cosmetic properties are achieved, but difficulty in measurement and wastage occur
Solution Approach 1:
The patent changes the physical state parameter of the shampoo from liquid to solid form. The solid shampoo composition is provided in the form of granules or powder that can be easily measured and applied, eliminating the measurement difficulties and wastage associated with liquid shampoos while maintaining effective cleansing properties.
2Ease of operation
If liquid shampoo is used, then good cosmetic properties are achieved, but leakage occurs
Solution Approach 1:
The patent changes the physical state from liquid to solid, transforming the shampoo into a non-leaking format. The solid granule or powder form eliminates the leakage problem inherent in liquid shampoos, making them suitable for travel and use in various locations without contaminating clothing or surfaces.
3Shape
If thickeners are added to modify texture, then compactness is achieved, but cosmetic effects deteriorate
Solution Approach 1:
The patent uses a composite formulation combining solid shampoo granules or powder with specific cosmetic additives and conditioning agents. This composite approach allows the product to maintain compact solid form while incorporating ingredients that enhance cosmetic effects such as manageability, softness, and shine, without relying on thickeners that would compromise these properties.
4Shape
If thicker composition is used, then compactness is achieved, but rinsing water requirement increases
Solution Approach 1:
The patent changes the formulation to a solid granule or powder composition that dissolves quickly in water upon application. This parameter change allows the product to maintain compact storage while requiring minimal rinsing water, as the solid form applies more efficiently and rinses cleaner compared to thicker liquid compositions.
5Ease of operation
If solid granules are used, then ease of measurement is improved, but foam initiation is poor
Solution Approach 1:
The patent creates a composite solid shampoo formulation combining granules or powder with foam-enhancing ingredients and surfactants. This composite material approach enables the solid form to maintain ease of measurement while producing abundant, stable foam upon contact with water, resolving the contradiction between solid form benefits and foam generation.
6Ease of operation
If solid granules are used, then ease of measurement is improved, but disintegration occurs
Solution Approach 1:
The patent modifies the physical parameters of the solid shampoo by controlling particle size, density, and binding properties. These parameter changes enable the granules or powder to maintain structural integrity during storage and handling (preventing disintegration) while still dissolving effectively in water to provide proper foam initiation and cleansing action.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The composition provides a compact, easy-to-use solid shampoo that generates abundant, stable foam, rinses efficiently, and leaves hair feeling clean and soft, with enhanced manageability and disentanglement, while minimizing residues and water usage.
Implementation Method 1
a) one or more anionic surfactants of sulfate type, present in a total amount ranging from 10% to 35% by weight, relative to the total weight of the composition; b) one or more anionic surfactants of sulfonate type
Implementation Method 2
which forms a compact, easy-to-handle bar that rapidly solubilizes in water to produce a rich, creamy foam
Data Source
AI summary
The present invention relates to a solid composition comprising: a) one or more anionic surfactants of sulfate type, present in a total amount ranging from 10% to 35% by weight, relative to the total weight of the composition; b) one or more anionic surfactants of sulfonate type; c) one or more cationic polymers; and d) one or more (poly)glycerol esters.